public void testCandidateTransitionsToFollowerOnRejection() throws Throwable {
serverState.onStateChange(
state -> {
if (state == RaftServer.State.FOLLOWER) resume();
});
runOnServer(
() -> {
for (MemberState member : serverState.getCluster().getActiveMembers()) {
Server server = transport.server();
server
.listen(
member.getAddress(),
c -> {
c.handler(
VoteRequest.class,
request ->
CompletableFuture.completedFuture(
VoteResponse.builder().withTerm(2).withVoted(false).build()));
})
.thenRunAsync(this::resume);
}
});
await(1000, serverState.getCluster().getActiveMembers().size());
runOnServer(
() -> {
int self = serverState.getAddress().hashCode();
serverState.setTerm(1);
state.startElection();
assertEquals(serverState.getTerm(), 2L);
assertEquals(serverState.getLastVotedFor(), self);
});
await(1000);
}
@Override
public CompletableFuture<Void> close() {
return local.close().thenCompose(v -> remote.close());
}
@Override
public CompletableFuture<Void> listen(Address address, Consumer<Connection> listener) {
Assert.notNull(address, "address");
Assert.notNull(listener, "listener");
return local.listen(address, listener).thenCompose(v -> remote.listen(address, listener));
}